sdk-for-kotlin/docs/examples/java/backups/update-policy.md

import io.appwrite.Client;
import io.appwrite.coroutines.CoroutineCallback;
import io.appwrite.services.Backups;

Client client = new Client()
    .setEndpoint("https://<REGION>.cloud.appwrite.io/v1") // Your API Endpoint
    .setProject("<YOUR_PROJECT_ID>") // Your project ID
    .setKey("<YOUR_API_KEY>"); // Your secret API key

Backups backups = new Backups(client);

backups.updatePolicy(
    "<POLICY_ID>", // policyId
    "<NAME>", // name (optional)
    1, // retention (optional)
    "", // schedule (optional)
    false, // enabled (optional)
    new CoroutineCallback<>((result, error) -> {
        if (error != null) {
            error.printStackTrace();
            return;
        }

        System.out.println(result);
    })
);